It's worth watching if you like watching terrible movies.
Costumes - All the apelike characters have fake teeth which makes it difficult for them to speak properly, especially at the beginning of the movie.
-Ape women wear human makeup from the time period the movie was made in.
Plot - hard to follow? It seems the focus is more on action and vague vibe.
Characters - mostly pretty dreadful. It seems the ape characters can't quite decide how apelike they should be.
- The human characters can't quite decide how smart they should be.
- Peoples' names are difficult to catch, if they have them at all, and it's unclear what motivates them.
- Many side characters appear sheeplike, blindly following main characters for no reason.
Misc. Gripes - the difference between humans and apes seems to be unclear and unknown
- As bad as it is at the beginning, you will not like the ending.
If you prefer good movies, the original film exists from 1968, and is much better. The prequels exist and are also worth review. This one is not very good.